Dishwasher

ABSTRACT

A dishwasher made up of a drum and a lid, a rotating water dispensing member in said drum, and a dish rack. The rack is made up of a silverware holder supported on a rack and vertical columns extending upward from the silverware holder supporting a cup rack. The columns extend through gudgeons on rings and are limited in their downward movement by bosses on the columns.

United States Patent [1 1 Byrd [4 Nov. 20, 1973 DISHWASHER [75]Inventor: Richard W. Byrd, Erie, Pa.

[73 Assignee: Zwin Industries, Inc., Erie, Pa.

[22] Filed: Dec. 15, 1971 [21] Appl. No.: 208,242

[521 (LS. Cl. 134/179, 134/182 [51] Int. Cl. B08b 3/02 [58] FieldofSearch 134/144, 176, 179, 134/ 182 [56] References Cited UNITED STATESPATENTS 3,385,306 5/1968 Brater et a] 134/179 X 3,645,791 2/1972 Sadwith134/144 X 1,681,322 8/1928 Cave 134/176 X Primary Examiner-Robert L.Bleutge Attorney-Charles L. Lovercheck [57] ABSTRACT A dishwasher madeup of a drum and a lid, a rotating water dispensing member in said drum,and a dish rack. The rack is made up of a silverware holder supported ona rack and vertical columns extending upward from the silverware holdersupporting a cup rack. The columns extend through gudgeons on rings andare limited in their downward movement by bosses on the columns.

3 Claims, 3 Drawing Figures Patented Nov. 20, 1973 3,773,060

2 Sheets-Sheet l RICHARD W BYRD Patented Nov. 20, 1973 3,773,060

2 sheet g 2 FIG. 3 I60 RICHARD w BYRD DISHWASHER STATEMENT OF INVENTIONThis invention relates to dishwashers and, more particularly, todishwashers having an improved rack therein.

OBJECTS OF THE INVENTION It is an object of the invention to provide adishwasher where the dishes remain stationary and the water is suppliedto a rotatable hollow arm provided with spray apertures directed toproject water from the arm onto the dishes and where the spray aperturesare directed so that the emission of water provides a turning momemt tothe arm to cause it to rotate.

It is another object of the invention to provide a dishwasher having animproved dish supporting rack.

Another object of the invention is to provide an improved cutleryholding rack in combination with a dishwasher.

With the above and other objects in view, the present invention consistsof the combination and arrangement of parts hereinafter more fullydescribed, illustrated in the accompanying drawing and more particularlypointed out in the appended claims, it being understood that changes maybe made in the form size, proportions, and minor details of constructionwithout departing from the spirit or sacrificing any of the advantagesof the invention.

DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded view of the dishwasheraccording to the invention.

FIG. 2 is an enlarged cross sectional exploded view of the wateremitting structure.

FIG. 3 is an isometric view of the rack.

DETAILED DESCRIPTION OF THE DRAWINGS Now with more particular referenceto the drawings, the dishwasher shown has the basic elements, which arethe drum 10, the lid 11, the rack 56 and the rack 61, and the jetassembly 31. The drum 10 is supported on legs 19. The lid 11 may befitted onto the drum to form a watertight enclosure around the bottomplate rack 61 and the top plate rack 56. Dishes are supported on theracks. The jet assembly 31 freely rotates inside the racks.

A water supply fitting 30 is connectable to a source of water such as asuitable faucet. The fitting 30 is connected by hose 14 to the coupling16 which connects water through the coupling 16 and T-shaped member 18to jet assembly 31. The T-shaped member 18 is fixed to the bottom 12 ofthe drum by screws 33 and held rigidly thereto. The jet assembly 31 ismade up of the arms 20, cross fitting 21, downwardly disposed extensions22 and vertical branch 26. The extension 22 of the impeller extendsdownwardly and is rotatably received in the T-shaped member 18 androtates therein. A sealing O- ring is received in the groove 24 of theextension 22 to provide a watertight seal in the opening 23. The arms 20rotate around under the bottom plate rack 61, propelled by jets of wateremitting from the lateral openings 25 in the arms. The lateral openings25 are formed in the trailing edges of the arms 20 and project waterupward and backward onto the dishes in the rack 61. The vertical branch26 of the jet assembly extends up through the bottom rack 61 and upthrough the silverware rack 56 and through the rings 34 and 35 andprojects water between the vanes 52 onto the dishes supported on theracks 56 and 61. The arms 20 rotate freely in the space below the rack61 and above the bottom 12. The bottom plate plate rack 61 is made up ofan outer ring that rests on the shoulder 64 on the inner periphery ofthe bottom of the drum 10. Radially extending rods 62 have their outerends fixed to the ring 70 and are bent generally in V-shape at theirinner ends. A space for vertical branch 26 is defined by the V-shapedinner ends. The vertically extending rods 60 are fixed at their lowerends to the rods 62 and define spaces for plates supported on edge inthe spaces between the rods 60. The bottom plate rack 61 ismade up ofthe outer ring 70, rods 62 and vertically extending rods 60. The innerends of the rods 62 define a supporting surface on which the lower ring50 of the upper rack 56 is received.

The silverware rack, which is a part of the upper rack 56, is made up ofthe vanes 52 which may be made of flat platelike material. The vanes 52are fixed to ring 35 and extend radially outwardly and are supported ona bottom of the rack 56. The ring 35 is attached to the inner edges atthe bottom of the vanes and ring 34 is attached to the top inner cornerof the vanes 52 at their inner edges. The outer edges of the vanes 52are attached to the lower ring 35. The top ring 59 is attached to theinner ends of the outwardly extending arms 62. The outwardly extendingrods 62 are bent outwardly and downwardly, then upwardly and outwardly,and the outer ends are attached to the ring 68 and their inner ends areattached to the ring 59. Columns 27 are received in gudgeons 72 whichare integral with the lower ring 35. The columns 27 extend upwardly andare attached each in turn to rings 48, 58 and 59. Thus the bottom partof the rack 56, which is made up of the ring 50, vanes 53 and centerring 35, may be separated from the top 68.

Another embodiment of the upper rack is shown in FIG. 3. The embodimentshown in FIG. 3 is made up of the silverware rack comprising vanes 152,bottom inner ring 151, outer bottom ring 150, bottom 160, and silverwarering 127. The rings and 151 are integrally attached to vanes 152 and thevanes 152 are disposed above the grid bottom 160. Gudgeons 172 areformed integral around the outer periphery of the ring 150 and thecolumns 153 are received in the gudgeons 172. An intermediate part ofthe rack is made up of the cylindrical members 154, lower ring 156 andupper ring The upper ring 158' is integrally attached to the cylindricalmembers 154 at their upper end and the ring 148 is integrally attachedto the cylindrical members 154 at their lower ends. The columns 153extend up through the cylindrical members 154 and up into thecylindrical members 158 and are received in the gudgeons 172 at theirlower ends. The upper member of the rack is made up of cylindricalmembers 158 having a downwardly opening, blind holes in them, and areintegrally attached to the inner ring 159. The outer ring 168 and innerring 159 are connected together by the members 161 which extenddownwardly and outwardly and the members 162 which extend upwardly andoutwardly. It will be noted that the columns 153 are square in crosssection and the rings 156 and 158'159 and 168, are triangular in crosssection. The apex of the triangular cross section of members 162, rings156 and 158159 and 168 are all projecting downwardly so that the jets ofwater from vertical member 26 are diverted by the shape of these rings.The rack shown in FIG. 3 may be supported on a lower rack, such as rack61 in FIG. 1. The columns 153 have stops 157 on them which limit thedownward movement of the cylindrical members 154 on the columns The factthat the rack 156 is made of three separate parts (silverware rack, partA; intermediate rack part B; and upper rack part C supported together bycolumns 154) makes it possible to mold the rack 156 with knownconventional injection molding techniques.

The foregoing specification sets forth the invention in its preferredpractical forms but the structure shown is capable of modificationwithin a range of equivalents without departing from the invention whichis to be understood broadly novel as is commensurate with the appendedclaims.

The embodiments of the invention in which an exclu sive property orprivilege is claimed are defined as follows:

l. A dishwashing machine comprising a drum having a lid adapted to fiton said drum,

a rack for dishes in said drum,

said rack comprising an outer ring member, spaced gudgeons on said ringmember,

a plurality of columns received in said gudgeons,

vertically spaced rings having tube members fixed to the said verticallydisposed rings holding them in vertical spaced relation,

said columns extending through said tubes and hav ing stop membersengaging the lower end of said tubes,

a large ring, a top ring, said top ring being supported on said columnsand outwardly and downwardly extending arms attachcd to said top ringand extending downwardly and upwardly and then outwardly and up-wardlyproviding a crotch to support plates thereon and attached to said largering at their outer ends, said outer ring has an inner ring disposedconcentric thereto and spaced radially extending and verticallyextending vanes fixed to said outer ring and to said inner ring, a gridfixed to said outer ring and to said inner ring providing a bottom forsilverware,

and spray means for impinging water on said dishes supported on saidrack.

2. The washer recited in claim 1 wherein said rings and said columns arerectangular in cross section and a cover of said rectangular crosssections faces said spray means.

3. The washer recited in claim 2 wherein said spray means comprises,

a T-shaped member made of tubular members,

said T-shaped member having an extension rotatably received in a watersupply,

one said tubular member extending through said rings to project waterthereon,

one radially extending said tubular member being disposed below saidshoulder,

and openings in the trailing edges of said bar of said T-shaped memberfor discharging water and rotating said T-shaped member.

1. A dishwashing machine comprising a drum having a lid adapted to fiton said drum, a rack for dishes in said drum, said rack comprising anouter ring member, spaced gudgeons on said ring member, a plurality ofcolumns received in said gudgeons, vertically spaced rings having tubemembers fixed to the said vertically disposed rings holding them invertical spaced relation, said columns extending through said tubes andhaving stop members engaging the lower end of said tubes, a large ring,a top ring, said top ring being supported on said columns and outwardlyand downwardly extending arms attached to said top ring and extendingdownwardly and upwardly and then outwardly and upwardly providing acrotch to support plates thereon and attached to said large ring attheir outer ends, said outer ring has an inner ring disposed concentricthereto and spaced radially extending and vertically extending vanesfixed to said outer ring and to said inner ring, a grid fixed to saidouter ring and to said inner ring providing a bottom for silverware, andspray means for impinging water on said dishes supported on said rack.2. The washer recited in claim 1 wherein said rings and said columns arerectangular in cross section and a cover of said rectangular crosssections faces said spray means.
 3. The washer recited in claim 2wherein said spray means comprises, a T-shaped member made of tubularmembers, said T-shaped member having an extension rotatably received ina water supply, one said tubular member extending through said rings toproject water thereon, one radially extending said tubular member beingdisposed below said shoulder, and openings in the trailing edges of saidbar of said T-shaped member for discharging water and rotating saidT-shaped member.